question on curled leaves

johnnyCervo

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My top leaves are curled, any suggestions deficiancy.jpg
 
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dman1234

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hard to tell, but since its your top leaves only is there any chance they got to close to the lights.
 

Jericho

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I get that when they get too close to the light (too hot). After we had some cold weather they sorted them selves out.
 

trillions of atoms

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its not really the heat that causes the curl its the intensity of the spectrum.

But for chits and giggles what are your temps in the grow room...and these guys got you in the right direction. What size light? They could be to sensitive for the intensity that they are getting even if it feels "warm" or cooler on the back of yer hand when you wave it under the light where the plant tops are.
 
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dman1234

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IMO you need to lift that light 12-16 inchs a 1000 will still pound them with light, JMO

put your hand at the canopy and see if you feel the heat, raise the light until you can hold your hand at the canopy for 30 sec and not feel any burn.
 

Jericho

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Yeh what Dman said. My 600w with a cooltube gets to about 5 inches closest before i see curling.
 

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